A choroidal tumor may be simulated by hemorrhagic retinal detachment in the macular region. Maumenee1 has suggested the term "disciform detachment of the macula" to include both the serous and hemorrhagic types of disciform detachment of the macula. In the present case, the eye was enucleated with a diagnosis of melanoma of the macular area.
It is not possible to list a single finding which would allow an absolute differentiation between hemorrhagic detachment of the macula in all its different stages and melanoma of the choroid. In this case, it was not possible to differentiate between the two conditions. An interesting observation made in previous reports is that hemorrhagic detachment of the macula affects males three to five times as frequently as females. The onset is generally sudden and unilateral. In approximately 20% of the cases with bilateral involvement, this occurs almost simultaneously, or the second eye becomes
ZSCHEILE FP. Disciform Lesion of the Macula Simulating a Melanoma. Arch Ophthalmol. 1964;71(4):505-507. doi:10.1001/archopht.1964.00970010521013